normal#normalPlacemarkhighlight#highlightPlacemark#ggssStyleMapAirmail Arrows Across the USA (1 of 11)

“In the early days of the US Postal Service’s national airmail service, pilots had to navigate across the USA by sight alone – a task that bad weather could make extremely difficult. And so a network of towers was built, each bearing a gas-powered light for night-time visibility, and each with a large arrow-shaped foundation designed to assist daytime navigation. …”

Read the full text at GoogleSightseeing.com
]]>In the early days of the US Postal Service’s national airmail service, pilots had to navigate across the USA by sight alone – a task that bad weather could make extremely difficult. And so a network of towers was built, each bearing a gas-powered light for night-time visibility, and each with a large arrow-shaped foundation designed to assist daytime navigation. -122.07808537.9028930100000-122.078085,37.902893#ggssStyleMapAirmail Arrows Across the USA (2 of 11)

“In the early days of the US Postal Service’s national airmail service, pilots had to navigate across the USA by sight alone – a task that bad weather could make extremely difficult. And so a network of towers was built, each bearing a gas-powered light for night-time visibility, and each with a large arrow-shaped foundation designed to assist daytime navigation. ”

Read the full text at GoogleSightseeing.com
]]>In the early days of the US Postal Service’s national airmail service, pilots had to navigate across the USA by sight alone – a task that bad weather could make extremely difficult. And so a network of towers was built, each bearing a gas-powered light for night-time visibility, and each with a large arrow-shaped foundation designed to assist daytime navigation. -114.29445340.9278470100000-114.294453,40.927847#ggssStyleMapAirmail Arrows Across the USA (3 of 11)

“In the early days of the US Postal Service’s national airmail service, pilots had to navigate across the USA by sight alone – a task that bad weather could make extremely difficult. And so a network of towers was built, each bearing a gas-powered light for night-time visibility, and each with a large arrow-shaped foundation designed to assist daytime navigation. ”

Read the full text at GoogleSightseeing.com
]]>In the early days of the US Postal Service’s national airmail service, pilots had to navigate across the USA by sight alone – a task that bad weather could make extremely difficult. And so a network of towers was built, each bearing a gas-powered light for night-time visibility, and each with a large arrow-shaped foundation designed to assist daytime navigation. -112.25358940.7045620100000-112.253589,40.704562#ggssStyleMapAirmail Arrows Across the USA (4 of 11)

“In the early days of the US Postal Service’s national airmail service, pilots had to navigate across the USA by sight alone – a task that bad weather could make extremely difficult. And so a network of towers was built, each bearing a gas-powered light for night-time visibility, and each with a large arrow-shaped foundation designed to assist daytime navigation. ”

Read the full text at GoogleSightseeing.com
]]>In the early days of the US Postal Service’s national airmail service, pilots had to navigate across the USA by sight alone – a task that bad weather could make extremely difficult. And so a network of towers was built, each bearing a gas-powered light for night-time visibility, and each with a large arrow-shaped foundation designed to assist daytime navigation. -113.59528837.0647890100000-113.595288,37.064789#ggssStyleMapAirmail Arrows Across the USA (5 of 11)

“In the early days of the US Postal Service’s national airmail service, pilots had to navigate across the USA by sight alone – a task that bad weather could make extremely difficult. And so a network of towers was built, each bearing a gas-powered light for night-time visibility, and each with a large arrow-shaped foundation designed to assist daytime navigation. ”

Read the full text at GoogleSightseeing.com
]]>In the early days of the US Postal Service’s national airmail service, pilots had to navigate across the USA by sight alone – a task that bad weather could make extremely difficult. And so a network of towers was built, each bearing a gas-powered light for night-time visibility, and each with a large arrow-shaped foundation designed to assist daytime navigation. -122.56586945.5467820100000-122.565869,45.546782#ggssStyleMapAirmail Arrows Across the USA (6 of 11)

“In the early days of the US Postal Service’s national airmail service, pilots had to navigate across the USA by sight alone – a task that bad weather could make extremely difficult. And so a network of towers was built, each bearing a gas-powered light for night-time visibility, and each with a large arrow-shaped foundation designed to assist daytime navigation. ”

Read the full text at GoogleSightseeing.com
]]>In the early days of the US Postal Service’s national airmail service, pilots had to navigate across the USA by sight alone – a task that bad weather could make extremely difficult. And so a network of towers was built, each bearing a gas-powered light for night-time visibility, and each with a large arrow-shaped foundation designed to assist daytime navigation. -117.80140.9048480100000-117.801,40.904848#ggssStyleMapAirmail Arrows Across the USA (7 of 11)

“In the early days of the US Postal Service’s national airmail service, pilots had to navigate across the USA by sight alone – a task that bad weather could make extremely difficult. And so a network of towers was built, each bearing a gas-powered light for night-time visibility, and each with a large arrow-shaped foundation designed to assist daytime navigation. ”

Read the full text at GoogleSightseeing.com
]]>In the early days of the US Postal Service’s national airmail service, pilots had to navigate across the USA by sight alone – a task that bad weather could make extremely difficult. And so a network of towers was built, each bearing a gas-powered light for night-time visibility, and each with a large arrow-shaped foundation designed to assist daytime navigation. -113.20580642.0109080100000-113.205806,42.010908#ggssStyleMapAirmail Arrows Across the USA (8 of 11)

“In the early days of the US Postal Service’s national airmail service, pilots had to navigate across the USA by sight alone – a task that bad weather could make extremely difficult. And so a network of towers was built, each bearing a gas-powered light for night-time visibility, and each with a large arrow-shaped foundation designed to assist daytime navigation. ”

Read the full text at GoogleSightseeing.com
]]>In the early days of the US Postal Service’s national airmail service, pilots had to navigate across the USA by sight alone – a task that bad weather could make extremely difficult. And so a network of towers was built, each bearing a gas-powered light for night-time visibility, and each with a large arrow-shaped foundation designed to assist daytime navigation. -85.79964239.5767080100000-85.799642,39.576708#ggssStyleMapAirmail Arrows Across the USA (9 of 11)

“In the early days of the US Postal Service’s national airmail service, pilots had to navigate across the USA by sight alone – a task that bad weather could make extremely difficult. And so a network of towers was built, each bearing a gas-powered light for night-time visibility, and each with a large arrow-shaped foundation designed to assist daytime navigation. ”

Read the full text at GoogleSightseeing.com
]]>In the early days of the US Postal Service’s national airmail service, pilots had to navigate across the USA by sight alone – a task that bad weather could make extremely difficult. And so a network of towers was built, each bearing a gas-powered light for night-time visibility, and each with a large arrow-shaped foundation designed to assist daytime navigation. -105.24321641.226280100000-105.243216,41.22628#ggssStyleMapAirmail Arrows Across the USA (10 of 11)

“In the early days of the US Postal Service’s national airmail service, pilots had to navigate across the USA by sight alone – a task that bad weather could make extremely difficult. And so a network of towers was built, each bearing a gas-powered light for night-time visibility, and each with a large arrow-shaped foundation designed to assist daytime navigation. ”

Read the full text at GoogleSightseeing.com
]]>In the early days of the US Postal Service’s national airmail service, pilots had to navigate across the USA by sight alone – a task that bad weather could make extremely difficult. And so a network of towers was built, each bearing a gas-powered light for night-time visibility, and each with a large arrow-shaped foundation designed to assist daytime navigation. -118.40186845.4939580100000-118.401868,45.493958#ggssStyleMapAirmail Arrows Across the USA (11 of 11)

“In the early days of the US Postal Service’s national airmail service, pilots had to navigate across the USA by sight alone – a task that bad weather could make extremely difficult. And so a network of towers was built, each bearing a gas-powered light for night-time visibility, and each with a large arrow-shaped foundation designed to assist daytime navigation. ”

Read the full text at GoogleSightseeing.com
]]>In the early days of the US Postal Service’s national airmail service, pilots had to navigate across the USA by sight alone – a task that bad weather could make extremely difficult. And so a network of towers was built, each bearing a gas-powered light for night-time visibility, and each with a large arrow-shaped foundation designed to assist daytime navigation. -106.79440935.0561810100000-106.794409,35.056181